Sodium Hydroxide → HCID 135599967, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of 3-amino-2-(3-hydroxy-2-methylphenyl)-2,5-dihydro-4H-pyrazolo[4,3-c]quinolin-4-one (100 mg), 1N aqueous sodium hydroxide solution (326 μl) and water (3 ml) was added dropwise γ-propiolactone (25 μl) at 80° C. The mixture was stirred at 80° C. for 2 hours, after stirring, cooled to room temperature, and the insoluble materials were filtered off. pH of the filtrate was adjusted to about 2 by adding 1N hydrochloric acid. The precipitated solid was collected by filtration, washed with water, and dried to obtain the target compound (8 mg).

Provenance & Evidence